Home / 649,612,615.68-974,029,770.96-206,764,011.36

Finding the Fourth Proportional to 649,612,615.68, 974,029,770.96 and 206,764,011.36

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Solution

The fourth proportional to 649,612,615.68, 974,029,770.96 and 206,764,011.36 is: 310,022,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,612,615.68 : 974,029,770.96 = 206,764,011.36 : x
  2. Step 2: Convert to fraction form
    649,612,615.68/974,029,770.96 = 206,764,011.36/x
  3. Step 3: Cross multiply
    649,612,615.68x = 974,029,770.96 × 206,764,011.36
  4. Step 4: Simplify right side
    649,612,615.68x = 201,394,302,627,751,648
  5. Step 5: Solve for x
    x = 201,394,302,627,751,648/649,612,615.68
  6. Step 6: Final answer
    x = 310,022,154.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.